. >> reporter: here in seoul, we are still waiting to see if north korea will, in fact, test fire at least one missile. we have been waiting for days. is it just hype, will it actually ever happen. we may find out tomorrow. tomorrow is the anniversary in north korea of the birth of the country's late founder, kim il-sung, a time where there are usually military parades and shows of force. the missile launch could be timed to coincide with the anniversary. across the region people are still on edge. countries are still worried what this missile test could mean. diplomatically, we could be seeing some progress, particularly between the united states and china. secretary kerry in japan was earlier in china, had what seemed to be productive meetings, both the u.s. and china appearing to agree to return to diplomacy to resume negotiations to try to get north korea to give up its nuclear weapons. pyongyang said they will never give up the weapons, they are fight vital, it says, for its survival. richard engel, seoul. >> more coverage of on-going tension on the korean peninsula, including s